Display screen or part thereof with graphical user interface



1. Display screen or portion thereof with a graphical user interface

The use of different solid cross-hatching and broken diagonal lines indicates contrasts in shade or colouring; the outermost broken lines show a display screen or portion thereof, and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or part thereof with a graphical user interface, as shown and described. 